The following commit has been merged into the perf/urgent branch of tip:

Commit-ID:     ae199c580da1754a2b051321eeb76d6dacd8707b
Gitweb:        
https://git.kernel.org/tip/ae199c580da1754a2b051321eeb76d6dacd8707b
Author:        Yunfeng Ye <yeyunf...@huawei.com>
AuthorDate:    Tue, 15 Oct 2019 10:54:14 +08:00
Committer:     Arnaldo Carvalho de Melo <a...@redhat.com>
CommitterDate: Tue, 15 Oct 2019 12:08:13 -03:00

perf c2c: Fix memory leak in build_cl_output()

There is a memory leak problem in the failure paths of
build_cl_output(), so fix it.

Signed-off-by: Yunfeng Ye <yeyunf...@huawei.com>
Acked-by: Jiri Olsa <jo...@kernel.org>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Feilong Lin <linfeil...@huawei.com>
Cc: Hu Shiyuan <hushiy...@huawei.com>
Cc: Mark Rutland <mark.rutl...@arm.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Link: 
http://lore.kernel.org/lkml/4d3c0178-5482-c313-98e1-f82090d2d...@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/builtin-c2c.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 3542b6a..e69f449 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2635,6 +2635,7 @@ static int build_cl_output(char *cl_sort, bool no_source)
        bool add_sym   = false;
        bool add_dso   = false;
        bool add_src   = false;
+       int ret = 0;
 
        if (!buf)
                return -ENOMEM;
@@ -2653,7 +2654,8 @@ static int build_cl_output(char *cl_sort, bool no_source)
                        add_dso = true;
                } else if (strcmp(tok, "offset")) {
                        pr_err("unrecognized sort token: %s\n", tok);
-                       return -EINVAL;
+                       ret = -EINVAL;
+                       goto err;
                }
        }
 
@@ -2676,13 +2678,15 @@ static int build_cl_output(char *cl_sort, bool 
no_source)
                add_sym ? "symbol," : "",
                add_dso ? "dso," : "",
                add_src ? "cl_srcline," : "",
-               "node") < 0)
-               return -ENOMEM;
+               "node") < 0) {
+               ret = -ENOMEM;
+               goto err;
+       }
 
        c2c.show_src = add_src;
-
+err:
        free(buf);
-       return 0;
+       return ret;
 }
 
 static int setup_coalesce(const char *coalesce, bool no_source)

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